Regulating valve with wear-resistant assembly

Abstract

The utility model relates to the technical field of regulating valves, discloses a regulating valve with a wear-resistant component, and solves the problems that the valve body of the existing regulating valve is abraded due to long-time scouring of a medium, so that the sealing problem is caused, the valve body cannot be normally used, and if a module which is abraded and loosened cannot be regulated at the moment, the valve body cannot be normally used. In order to solve the problems that in the prior art, the whole valve body needs to be replaced, the cost is high, and the service life of the adjusting valve is short, the adjusting valve with the wear-resistant assembly comprises a valve body, an adjusting cavity is formed in the upper portion of the valve body, an adjusting cover is arranged on the upper portion of the adjusting cavity, the interior of the adjusting cover is hollow, and an adjusting assembly is arranged in the adjusting cover. A wear-resisting assembly is arranged in the adjusting cover, the lower ends of the adjusting assembly and the wear-resisting assembly penetrate through the adjusting cavity and extend into the valve body, the wear-resisting assembly prevents the adjusting valve from being abraded due to long-time scouring, and the situation that the service life of the adjusting valve is short is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a regulating valve with a wear-resistant component. Background Art

[0002] The regulating valve, also known as the control valve, is a device that controls the flow of fluid in the conveying pipeline. It is the execution unit in the industrial automation control system and an indispensable component in the regulation system. It is an important part of the industrial automation system. In the field of industrial automation process control, the regulating valve receives the control signal output by the regulating control unit and uses power operation to change the process parameters such as medium flow, pressure, temperature, and liquid level. It is generally composed of an actuator and a valve.

[0003] The valve bodies of common control valves are all one-piece, and are directly formed as one piece. After being used for a long time, the inside of the valve body will be worn due to the long-term erosion of the medium, which will cause sealing problems and make it impossible to use normally. At this time, if the worn and loose module cannot be adjusted, the entire valve body needs to be replaced, resulting in high costs and a short service life of the control valve. For this reason, a control valve with a wear-resistant component is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a regulating valve with a wear-resistant component, which adopts this structure to work, thereby solving the problem that the existing regulating valve causes wear inside the valve body due to long-term scouring of the medium, thereby causing sealing problems and making it impossible to use normally. At this time, if the worn and loose module cannot be adjusted, the entire valve body needs to be replaced, which is costly and has a short service life of the regulating valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a regulating valve with a wear-resistant component, comprising a valve body, an regulating cavity is arranged above the valve body, an regulating cover is arranged above the regulating cavity, the interior of the regulating cover is hollow, an regulating component is arranged inside the regulating cover, a wear-resistant component is arranged inside the regulating cover, the lower ends of the regulating component and the wear-resistant component extend through the regulating cavity to the interior of the valve body, and the wear-resistant component is used to prevent the regulating valve from being worn due to long-term erosion, thereby avoiding a short service life of the regulating valve.

[0006] Preferably, a group of guide plates are arranged inside the valve body, positioning holes are opened through both sides of the regulating cavity, and sliding grooves are arranged on both sides of the regulating cover, which are conducive to the control plate driving the valve stem to move.

[0007] Preferably, the adjusting assembly includes a valve stem arranged inside the adjusting cover, the lower end of the valve stem extends through the adjusting cavity to the interior of the valve body, the valve stem is slidably connected to the adjusting cover and the valve body, a round hole is arranged inside the valve stem, a group of control rods are arranged outside the valve stem, one end of the control rod away from the valve stem is arranged inside the slide groove, a return spring is connected below the control rod, and the valve stem is pushed by the control rod, so that the valve stem drives the valve plug to adjust the substance inside the valve body.

[0008] Preferably, the lower end of the return spring is connected to the inside of the adjusting cover, and a group of sleeves are provided on the outside of the valve stem located inside the adjusting chamber, and a push spring is provided inside the sleeve, one end of the push spring is connected to the valve stem, and the other end of the push spring is connected to a movable rod, and a positioning block is provided at the end of the movable rod away from the push spring, and a valve plug is provided at the lower end of the valve stem, and the positioning block is pushed by the push spring to engage with the positioning block to fix the valve plug to achieve adjustment.

[0009] Preferably, the wear-resistant component includes an air supply pipe arranged inside the circular hole, an air charging valve is arranged at the upper end of the air supply pipe, an air charging pipe is arranged at the lower end of the air supply pipe, the air charging pipe passes through the valve stem and extends to the outside of the valve stem, a hollow rubber is arranged outside the air charging pipe, and the hollow rubber is arranged outside the valve plug, and the valve plug loosened due to wear can be fitted again by inflating the hollow rubber.

[0010] Preferably, fixed plates are provided on both sides of the hollow rubber, one side of the fixed plate is provided on the guide plate, a movable groove is provided on the side of the fixed plate close to the hollow rubber, a rubber spring is provided inside the movable groove, and a movable plate is provided at one end of the rubber spring. When the movable plate fits the valve plug, the rubber spring pushes the movable plate close to the valve plug.

[0011] Preferably, a group of connecting rods are arranged above the control rod, the upper ends of the connecting rods extend to the outside of the adjusting cover, the connecting rods are slidably connected to the adjusting cover, and a pressing plate is arranged on the upper ends of the connecting rods to control the movement of the valve stem.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model proposes a regulating valve with a wear-resistant component. The control plate is pressed down by a pressing plate to move the valve stem downward, so that the valve plug at the lower end of the valve stem moves to a suitable position. At this time, a push spring pushes the movable rod to drive the positioning block to fit into the positioning hole to fix the valve plug. The valve plug will wear out under long-term scouring, resulting in the valve plug being unable to completely block the object. At this time, the outside of the valve plug is wrapped with hollow rubber. When the hollow rubber is worn, air is inflated into the air pipe through the inflation valve, and the hollow rubber is expanded again by using the inflation pipe to fit the drainage plate more closely. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the adjustment component of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the wear-resistant component of the utility model.

[0018] In the figure: 1. valve body; 11. guide plate; 2. regulating chamber; 21. positioning hole; 3. regulating cover; 31. slide groove; 4. regulating assembly; 41. valve stem; 42. round hole; 43. control board; 44. reset spring; 45. sleeve; 46. push spring; 47. movable rod; 48. positioning block; 49. valve plug; 5. wear-resistant assembly; 51. air pipe; 52. inflation valve; 53. inflation pipe; 54. hollow rubber; 55. fixed plate; 56. movable groove; 57. rubber spring; 58. movable plate; 6. connecting rod; 7. press plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0021] Combination Figure 1-Figure 4 A regulating valve with a wear-resistant component includes a valve body 1, an adjusting chamber 2 is arranged above the valve body 1, an adjusting cover 3 is arranged above the adjusting chamber 2, the interior of the regulating cover 3 is hollow, an adjusting component 4 is arranged inside the regulating cover 3, a wear-resistant component 5 is arranged inside the regulating cover 3, and the lower ends of the regulating component 4 and the wear-resistant component 5 extend through the regulating chamber 2 to the interior of the valve body 1.

[0022] A group of guide plates 11 are arranged inside the valve body 1, positioning holes 21 are opened on both sides of the regulating chamber 2, slide grooves 31 are arranged on both sides of the regulating cover 3, and the regulating assembly 4 includes a valve stem 41 arranged inside the regulating cover 3, the lower end of the valve stem 41 passes through the regulating chamber 2 and extends to the inside of the valve body 1, the valve stem 41 is slidably connected with the regulating cover 3 and the valve body 1, a circular hole 42 is arranged inside the valve stem 41, and a group of control rods 43 are arranged outside the valve stem 41, and the end of the control rod 43 away from the valve stem 41 is arranged inside the slide groove 31, and a return spring 44 is connected below the control rod 43, and the return spring 44 The lower end of the valve stem 41 is connected to the inside of the regulating cover 3, and a group of sleeves 45 are arranged on the outside of the regulating chamber 2. A push spring 46 is arranged inside the sleeve 45, and one end of the push spring 46 is connected to the valve stem 41, and the other end of the push spring 46 is connected to a movable rod 47, and a positioning block 48 is arranged at the end of the movable rod 47 away from the push spring 46. A valve plug 49 is arranged at the lower end of the valve stem 41, and the wear-resistant component 5 includes an air delivery pipe 51 arranged inside the circular hole 42, an air charging valve 52 is arranged at the upper end of the air delivery pipe 51, and an air charging pipe 53 is arranged at the lower end of the air delivery pipe 51, and the air charging pipe 53 passes through The valve stem 41 extends to the outside of the valve stem 41, a hollow rubber 54 is arranged on the outside of the inflation tube 53, and the hollow rubber 54 is arranged on the outside of the valve plug 49. Fixed plates 55 are arranged on both sides of the hollow rubber 54, and one side of the fixed plate 55 is arranged on the guide plate 11. A movable groove 56 is arranged on the side of the fixed plate 55 close to the hollow rubber 54, and a rubber spring 57 is arranged inside the movable groove 56. A movable plate 58 is arranged at one end of the rubber spring 57. A group of connecting rods 6 are arranged above the control rod 43, and the upper end of the connecting rod 6 extends to the outside of the adjustment cover 3. The connecting rod 6 is slidably connected with the adjustment cover 3. A pressing plate 7 is provided at the upper end of the connecting rod 6. The control plate 43 is pressed by the pressing plate 7 to move the valve stem 41 downward, so that the valve plug 49 at the lower end of the valve stem 41 moves to a suitable position. At this time, the push spring 46 pushes the movable rod 47 to drive the positioning block 48 to snap into the positioning hole 21, so as to fix the valve plug 49. The valve plug 49 will wear out under long-term flushing, resulting in the valve plug 49 being unable to completely block the object. At this time, the outside of the valve plug 49 is wrapped with a hollow rubber 54. When the hollow rubber 54 is worn, air is inflated into the air supply pipe 51 through the inflation valve 52, and the hollow rubber 54 is expanded again by the inflation pipe 53 to fit the drainage plate more closely.

[0023] Working principle: First, press the control plate 43 by pressing the plate 7 to move the valve stem 41 downward, so that the valve plug 49 at the lower end of the valve stem 41 moves to a suitable position. At this time, the push spring 46 pushes the movable rod 47 to drive the positioning block 48 to fit into the positioning hole 21, so as to fix the valve plug 49. The valve plug 49 will wear out under long-term flushing, resulting in the valve plug 49 being unable to completely block objects. At this time, the outside of the valve plug 49 is wrapped with a hollow rubber 54. When the hollow rubber 54 is worn, air is inflated into the air pipe 51 through the inflation valve 52, and the hollow rubber 54 is expanded again by the inflation pipe 53 to fit the drainage plate more closely.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A regulating valve with a wear-resistant component, comprising a valve body (1), a regulating chamber (2) disposed above the valve body (1), and a regulating cover (3) disposed above the regulating chamber (2), characterized in that: The interior of the regulating cover (3) is hollow, an regulating component (4) is arranged inside the regulating cover (3), and a wear-resistant component (5) is arranged inside the regulating cover (3). The lower ends of the regulating component (4) and the wear-resistant component (5) extend through the regulating cavity (2) to the interior of the valve body (1). The wear-resistant component (5) prevents the regulating valve from being worn due to long-term scouring, thereby preventing the regulating valve from having a short service life.

2. A regulating valve with a wear-resistant component according to claim 1, characterized in that: A group of guide plates (11) are arranged inside the valve body (1), positioning holes (21) are provided on both sides of the regulating chamber (2), and sliding grooves (31) are arranged on both sides of the regulating cover (3).

3. A regulating valve with a wear-resistant component according to claim 1, characterized in that: The regulating assembly (4) comprises a valve stem (41) arranged inside the regulating cover (3), the lower end of the valve stem (41) passes through the regulating chamber (2) and extends to the inside of the valve body (1), the valve stem (41) is slidably connected to the regulating cover (3) and the valve body (1), a circular hole (42) is arranged inside the valve stem (41), a group of control rods (43) are arranged outside the valve stem (41), one end of the control rod (43) away from the valve stem (41) is arranged inside the slide groove (31), and a return spring (44) is connected below the control rod (43).

4. A regulating valve with a wear-resistant component according to claim 3, characterized in that: The lower end of the reset spring (44) is connected to the inside of the regulating cover (3); a group of sleeves (45) are arranged on the outside of the valve stem (41) located inside the regulating chamber (2); a push spring (46) is arranged inside the sleeve (45); one end of the push spring (46) is connected to the valve stem (41); the other end of the push spring (46) is connected to a movable rod (47); a positioning block (48) is arranged at the end of the movable rod (47) away from the push spring (46); and a valve plug (49) is arranged at the lower end of the valve stem (41).

5. The regulating valve with a wear-resistant component according to claim 1, characterized in that: The wear-resistant component (5) comprises an air delivery pipe (51) arranged inside the circular hole (42); an air charging valve (52) is arranged at the upper end of the air delivery pipe (51); an air charging pipe (53) is arranged at the lower end of the air delivery pipe (51); the air charging pipe (53) penetrates the valve stem (41) and extends to the outside of the valve stem (41); a hollow rubber (54) is arranged outside the air charging pipe (53); and the hollow rubber (54) is arranged outside the valve plug (49).

6. A regulating valve with a wear-resistant component according to claim 5, characterized in that: Fixed plates (55) are arranged on both sides of the hollow rubber (54), one side of the fixed plate (55) is arranged on the guide plate (11), a movable groove (56) is arranged on the side of the fixed plate (55) close to the hollow rubber (54), a rubber spring (57) is arranged inside the movable groove (56), and a movable plate (58) is arranged at one end of the rubber spring (57).

7. A regulating valve with a wear-resistant component according to claim 3, characterized in that: A group of connecting rods (6) are arranged above the control rod (43), the upper ends of the connecting rods (6) extend to the outside of the adjustment cover (3), the connecting rods (6) are slidably connected to the adjustment cover (3), and a pressing plate (7) is arranged at the upper ends of the connecting rods (6).

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